epiphragm definition

  • noun:
    • A dry level of mucus employed by a snail or mollusk to secure it self inside its shell during hibernation.
    • A membranaceous or calcareous septum with which some mollusks nearby the aperture for the layer during the time of hibernation, or estivation.
    • In botany: The disk-like apex for the columella of Polytricheæ, which expands within the mouth of pill below the operculum.
    • A delicate membrane shutting the cup-like receptacle associated with Nidulariacei.
    • In conchology, the bowl of hardened mucus secreted by a gastropod, as a snail, to connect up or seal the opening associated with shell during hibernation; a kind of short-term or false operculum, occasionally hardened by calcareous deposit. See clausilium.
    • A dry layer of mucus utilized by a snail or mollusk to secure it self inside its shell during hibernation.
    • A membranaceous or calcareous septum with which some mollusks nearby the aperture of the layer before hibernation, or estivation.
    • In botany: The disk-like apex associated with the columella of Polytricheæ, which extends over the lips associated with the pill underneath the operculum.
    • A delicate membrane layer closing the cup-like receptacle associated with Nidulariacei.
    • In conchology, the full bowl of hardened mucus released by a gastropod, as a snail, to connect up or secure the orifice associated with the shell during hibernation; a kind of temporary or untrue operculum, occasionally hardened by calcareous deposit. See clausilium.
    • A dry level of mucus utilized by a snail or mollusk to secure it self inside its shell during hibernation.
    • A membranaceous or calcareous septum with which some mollusks nearby the aperture of shell before hibernation, or estivation.
    • In botany: The disk-like apex of the columella of Polytricheæ, which stretches across mouth of this capsule underneath the operculum.
    • A delicate membrane shutting the cup-like receptacle for the Nidulariacei.
    • In conchology, the plate of hardened mucus secreted by a gastropod, as a snail, to plug up or secure the orifice associated with layer during hibernation; sort of short-term or false operculum, occasionally hardened by calcareous deposit. See clausilium.
    • A dry layer of mucus employed by a snail or mollusk to secure it self inside its shell during hibernation.
    • A membranaceous or calcareous septum with which some mollusks close the aperture of shell during the time of hibernation, or estivation.
    • In botany: The disk-like apex of the columella of Polytricheæ, which extends over the mouth of the capsule below the operculum.
    • A delicate membrane shutting the cup-like receptacle regarding the Nidulariacei.
    • In conchology, the full bowl of hardened mucus secreted by a gastropod, as a snail, to connect up or seal the opening of shell during hibernation; a sort of short-term or untrue operculum, often hardened by calcareous deposit. See clausilium.

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